| // Copyright 2021 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "src/tint/ast/builtin_attribute.h" |
| #include "src/tint/ast/location_attribute.h" |
| #include "src/tint/ast/return_statement.h" |
| #include "src/tint/ast/stage_attribute.h" |
| #include "src/tint/resolver/resolver.h" |
| #include "src/tint/resolver/resolver_test_helper.h" |
| |
| #include "gmock/gmock.h" |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| namespace tint::resolver { |
| namespace { |
| |
| // Helpers and typedefs |
| template <typename T> |
| using DataType = builder::DataType<T>; |
| template <typename T> |
| using vec2 = builder::vec2<T>; |
| template <typename T> |
| using vec3 = builder::vec3<T>; |
| template <typename T> |
| using vec4 = builder::vec4<T>; |
| template <typename T> |
| using mat2x2 = builder::mat2x2<T>; |
| template <typename T> |
| using mat3x3 = builder::mat3x3<T>; |
| template <typename T> |
| using mat4x4 = builder::mat4x4<T>; |
| template <typename T> |
| using alias = builder::alias<T>; |
| |
| class ResolverEntryPointValidationTest : public TestHelper, public testing::Test {}; |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnTypeAttribute_Location) { |
| // @fragment |
| // fn main() -> @location(0) f32 { return 1.0; } |
| Func(Source{{12, 34}}, "main", {}, ty.f32(), {Return(1_f)}, |
| {Stage(ast::PipelineStage::kFragment)}, {Location(0)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnTypeAttribute_Builtin) { |
| // @vertex |
| // fn main() -> @builtin(position) vec4<f32> { return vec4<f32>(); } |
| Func(Source{{12, 34}}, "main", {}, ty.vec4<f32>(), {Return(Construct(ty.vec4<f32>()))}, |
| {Stage(ast::PipelineStage::kVertex)}, {Builtin(ast::Builtin::kPosition)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnTypeAttribute_Missing) { |
| // @vertex |
| // fn main() -> f32 { |
| // return 1.0; |
| // } |
| Func(Source{{12, 34}}, "main", {}, ty.vec4<f32>(), {Return(Construct(ty.vec4<f32>()))}, |
| {Stage(ast::PipelineStage::kVertex)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "12:34 error: missing entry point IO attribute on return type"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnTypeAttribute_Multiple) { |
| // @vertex |
| // fn main() -> @location(0) @builtin(position) vec4<f32> { |
| // return vec4<f32>(); |
| // } |
| Func(Source{{12, 34}}, "main", {}, ty.vec4<f32>(), {Return(Construct(ty.vec4<f32>()))}, |
| {Stage(ast::PipelineStage::kVertex)}, |
| {Location(Source{{13, 43}}, 0), Builtin(Source{{14, 52}}, ast::Builtin::kPosition)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(14:52 error: multiple entry point IO attributes |
| 13:43 note: previously consumed location(0))"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnType_Struct_Valid) { |
| // struct Output { |
| // @location(0) a : f32; |
| // @builtin(frag_depth) b : f32; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto* output = |
| Structure("Output", {Member("a", ty.f32(), {Location(0)}), |
| Member("b", ty.f32(), {Builtin(ast::Builtin::kFragDepth)})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnType_Struct_MemberMultipleAttributes) { |
| // struct Output { |
| // @location(0) @builtin(frag_depth) a : f32; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto* output = |
| Structure("Output", {Member("a", ty.f32(), |
| {Location(Source{{13, 43}}, 0), |
| Builtin(Source{{14, 52}}, ast::Builtin::kFragDepth)})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(14:52 error: multiple entry point IO attributes |
| 13:43 note: previously consumed location(0) |
| 12:34 note: while analysing entry point 'main')"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnType_Struct_MemberMissingAttribute) { |
| // struct Output { |
| // @location(0) a : f32; |
| // b : f32; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto* output = Structure("Output", {Member(Source{{13, 43}}, "a", ty.f32(), {Location(0)}), |
| Member(Source{{14, 52}}, "b", ty.f32(), {})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| R"(14:52 error: missing entry point IO attribute |
| 12:34 note: while analysing entry point 'main')"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ReturnType_Struct_DuplicateBuiltins) { |
| // struct Output { |
| // @builtin(frag_depth) a : f32; |
| // @builtin(frag_depth) b : f32; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto* output = |
| Structure("Output", {Member("a", ty.f32(), {Builtin(ast::Builtin::kFragDepth)}), |
| Member("b", ty.f32(), {Builtin(ast::Builtin::kFragDepth)})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ( |
| r()->error(), |
| R"(12:34 error: builtin(frag_depth) attribute appears multiple times as pipeline output |
| 12:34 note: while analysing entry point 'main')"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ParameterAttribute_Location) { |
| // @fragment |
| // fn main(@location(0) param : f32) {} |
| auto* param = Param("param", ty.f32(), {Location(0)}); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ParameterAttribute_Missing) { |
| // @fragment |
| // fn main(param : f32) {} |
| auto* param = Param(Source{{13, 43}}, "param", ty.vec4<f32>()); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "13:43 error: missing entry point IO attribute on parameter"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, ParameterAttribute_Multiple) { |
| // @fragment |
| // fn main(@location(0) @builtin(sample_index) param : u32) {} |
| auto* param = Param( |
| "param", ty.u32(), |
| {Location(Source{{13, 43}}, 0), Builtin(Source{{14, 52}}, ast::Builtin::kSampleIndex)}); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(14:52 error: multiple entry point IO attributes |
| 13:43 note: previously consumed location(0))"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, Parameter_Struct_Valid) { |
| // struct Input { |
| // @location(0) a : f32; |
| // @builtin(sample_index) b : u32; |
| // }; |
| // @fragment |
| // fn main(param : Input) {} |
| auto* input = |
| Structure("Input", {Member("a", ty.f32(), {Location(0)}), |
| Member("b", ty.u32(), {Builtin(ast::Builtin::kSampleIndex)})}); |
| auto* param = Param("param", ty.Of(input)); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, Parameter_Struct_MemberMultipleAttributes) { |
| // struct Input { |
| // @location(0) @builtin(sample_index) a : u32; |
| // }; |
| // @fragment |
| // fn main(param : Input) {} |
| auto* input = |
| Structure("Input", {Member("a", ty.u32(), |
| {Location(Source{{13, 43}}, 0), |
| Builtin(Source{{14, 52}}, ast::Builtin::kSampleIndex)})}); |
| auto* param = Param("param", ty.Of(input)); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(14:52 error: multiple entry point IO attributes |
| 13:43 note: previously consumed location(0) |
| 12:34 note: while analysing entry point 'main')"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, Parameter_Struct_MemberMissingAttribute) { |
| // struct Input { |
| // @location(0) a : f32; |
| // b : f32; |
| // }; |
| // @fragment |
| // fn main(param : Input) {} |
| auto* input = Structure("Input", {Member(Source{{13, 43}}, "a", ty.f32(), {Location(0)}), |
| Member(Source{{14, 52}}, "b", ty.f32(), {})}); |
| auto* param = Param("param", ty.Of(input)); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(14:52 error: missing entry point IO attribute |
| 12:34 note: while analysing entry point 'main')"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, Parameter_DuplicateBuiltins) { |
| // @fragment |
| // fn main(@builtin(sample_index) param_a : u32, |
| // @builtin(sample_index) param_b : u32) {} |
| auto* param_a = Param("param_a", ty.u32(), {Builtin(ast::Builtin::kSampleIndex)}); |
| auto* param_b = Param("param_b", ty.u32(), {Builtin(ast::Builtin::kSampleIndex)}); |
| Func(Source{{12, 34}}, "main", {param_a, param_b}, ty.void_(), {}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: builtin(sample_index) attribute appears multiple times as " |
| "pipeline input"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, Parameter_Struct_DuplicateBuiltins) { |
| // struct InputA { |
| // @builtin(sample_index) a : u32; |
| // }; |
| // struct InputB { |
| // @builtin(sample_index) a : u32; |
| // }; |
| // @fragment |
| // fn main(param_a : InputA, param_b : InputB) {} |
| auto* input_a = |
| Structure("InputA", {Member("a", ty.u32(), {Builtin(ast::Builtin::kSampleIndex)})}); |
| auto* input_b = |
| Structure("InputB", {Member("a", ty.u32(), {Builtin(ast::Builtin::kSampleIndex)})}); |
| auto* param_a = Param("param_a", ty.Of(input_a)); |
| auto* param_b = Param("param_b", ty.Of(input_b)); |
| Func(Source{{12, 34}}, "main", {param_a, param_b}, ty.void_(), {}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ( |
| r()->error(), |
| R"(12:34 error: builtin(sample_index) attribute appears multiple times as pipeline input |
| 12:34 note: while analysing entry point 'main')"); |
| } |
| |
| TEST_F(ResolverEntryPointValidationTest, VertexShaderMustReturnPosition) { |
| // @vertex |
| // fn main() {} |
| Func(Source{{12, 34}}, "main", {}, ty.void_(), {}, {Stage(ast::PipelineStage::kVertex)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: a vertex shader must include the 'position' builtin " |
| "in its return type"); |
| } |
| |
| namespace TypeValidationTests { |
| struct Params { |
| builder::ast_type_func_ptr create_ast_type; |
| bool is_valid; |
| }; |
| |
| template <typename T> |
| constexpr Params ParamsFor(bool is_valid) { |
| return Params{DataType<T>::AST, is_valid}; |
| } |
| |
| using TypeValidationTest = resolver::ResolverTestWithParam<Params>; |
| |
| static constexpr Params cases[] = { |
| ParamsFor<f32>(true), // |
| ParamsFor<i32>(true), // |
| ParamsFor<u32>(true), // |
| ParamsFor<bool>(false), // |
| ParamsFor<vec2<f32>>(true), // |
| ParamsFor<vec3<f32>>(true), // |
| ParamsFor<vec4<f32>>(true), // |
| ParamsFor<mat2x2<f32>>(false), // |
| ParamsFor<mat3x3<f32>>(false), // |
| ParamsFor<mat4x4<f32>>(false), // |
| ParamsFor<alias<f32>>(true), // |
| ParamsFor<alias<i32>>(true), // |
| ParamsFor<alias<u32>>(true), // |
| ParamsFor<alias<bool>>(false), // |
| }; |
| |
| TEST_P(TypeValidationTest, BareInputs) { |
| // @fragment |
| // fn main(@location(0) @interpolate(flat) a : *) {} |
| auto params = GetParam(); |
| auto* a = Param("a", params.create_ast_type(*this), {Location(0), Flat()}); |
| Func(Source{{12, 34}}, "main", {a}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| if (params.is_valid) { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } else { |
| EXPECT_FALSE(r()->Resolve()); |
| } |
| } |
| |
| TEST_P(TypeValidationTest, StructInputs) { |
| // struct Input { |
| // @location(0) @interpolate(flat) a : *; |
| // }; |
| // @fragment |
| // fn main(a : Input) {} |
| auto params = GetParam(); |
| auto* input = |
| Structure("Input", {Member("a", params.create_ast_type(*this), {Location(0), Flat()})}); |
| auto* a = Param("a", ty.Of(input), {}); |
| Func(Source{{12, 34}}, "main", {a}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| if (params.is_valid) { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } else { |
| EXPECT_FALSE(r()->Resolve()); |
| } |
| } |
| |
| TEST_P(TypeValidationTest, BareOutputs) { |
| // @fragment |
| // fn main() -> @location(0) * { |
| // return *(); |
| // } |
| auto params = GetParam(); |
| Func(Source{{12, 34}}, "main", {}, params.create_ast_type(*this), |
| {Return(Construct(params.create_ast_type(*this)))}, {Stage(ast::PipelineStage::kFragment)}, |
| {Location(0)}); |
| |
| if (params.is_valid) { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } else { |
| EXPECT_FALSE(r()->Resolve()); |
| } |
| } |
| |
| TEST_P(TypeValidationTest, StructOutputs) { |
| // struct Output { |
| // @location(0) a : *; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto params = GetParam(); |
| auto* output = Structure("Output", {Member("a", params.create_ast_type(*this), {Location(0)})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| if (params.is_valid) { |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } else { |
| EXPECT_FALSE(r()->Resolve()); |
| } |
| } |
| INSTANTIATE_TEST_SUITE_P(ResolverEntryPointValidationTest, |
| TypeValidationTest, |
| testing::ValuesIn(cases)); |
| |
| } // namespace TypeValidationTests |
| |
| namespace LocationAttributeTests { |
| namespace { |
| using LocationAttributeTests = ResolverTest; |
| |
| TEST_F(LocationAttributeTests, Pass) { |
| // @fragment |
| // fn frag_main(@location(0) @interpolate(flat) a: i32) {} |
| |
| auto* p = Param(Source{{12, 34}}, "a", ty.i32(), {Location(0), Flat()}); |
| Func("frag_main", {p}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(LocationAttributeTests, BadType_Input_bool) { |
| // @fragment |
| // fn frag_main(@location(0) a: bool) {} |
| |
| auto* p = Param(Source{{12, 34}}, "a", ty.bool_(), {Location(Source{{34, 56}}, 0)}); |
| Func("frag_main", {p}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: cannot apply 'location' attribute to declaration of " |
| "type 'bool'\n" |
| "34:56 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadType_Output_Array) { |
| // @fragment |
| // fn frag_main()->@location(0) array<f32, 2> { return array<f32, 2>(); } |
| |
| Func(Source{{12, 34}}, "frag_main", {}, ty.array<f32, 2>(), |
| {Return(Construct(ty.array<f32, 2>()))}, {Stage(ast::PipelineStage::kFragment)}, |
| {Location(Source{{34, 56}}, 0)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: cannot apply 'location' attribute to declaration of " |
| "type 'array<f32, 2>'\n" |
| "34:56 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadType_Input_Struct) { |
| // struct Input { |
| // a : f32; |
| // }; |
| // @fragment |
| // fn main(@location(0) param : Input) {} |
| auto* input = Structure("Input", {Member("a", ty.f32())}); |
| auto* param = Param(Source{{12, 34}}, "param", ty.Of(input), {Location(Source{{13, 43}}, 0)}); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: cannot apply 'location' attribute to declaration of " |
| "type 'Input'\n" |
| "13:43 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadType_Input_Struct_NestedStruct) { |
| // struct Inner { |
| // @location(0) b : f32; |
| // }; |
| // struct Input { |
| // a : Inner; |
| // }; |
| // @fragment |
| // fn main(param : Input) {} |
| auto* inner = Structure("Inner", {Member(Source{{13, 43}}, "a", ty.f32(), {Location(0)})}); |
| auto* input = Structure("Input", {Member(Source{{14, 52}}, "a", ty.Of(inner))}); |
| auto* param = Param("param", ty.Of(input)); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "14:52 error: nested structures cannot be used for entry point IO\n" |
| "12:34 note: while analysing entry point 'main'"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadType_Input_Struct_RuntimeArray) { |
| // struct Input { |
| // @location(0) a : array<f32>; |
| // }; |
| // @fragment |
| // fn main(param : Input) {} |
| auto* input = |
| Structure("Input", {Member(Source{{13, 43}}, "a", ty.array<f32>(), {Location(0)})}); |
| auto* param = Param("param", ty.Of(input)); |
| Func(Source{{12, 34}}, "main", {param}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "13:43 error: cannot apply 'location' attribute to declaration of " |
| "type 'array<f32>'\n" |
| "note: 'location' attribute must only be applied to declarations " |
| "of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadMemberType_Input) { |
| // struct S { @location(0) m: array<i32>; }; |
| // @fragment |
| // fn frag_main( a: S) {} |
| |
| auto* m = Member(Source{{34, 56}}, "m", ty.array<i32>(), |
| ast::AttributeList{Location(Source{{12, 34}}, 0u)}); |
| auto* s = Structure("S", {m}); |
| auto* p = Param("a", ty.Of(s)); |
| |
| Func("frag_main", {p}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "34:56 error: cannot apply 'location' attribute to declaration of " |
| "type 'array<i32>'\n" |
| "12:34 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadMemberType_Output) { |
| // struct S { @location(0) m: atomic<i32>; }; |
| // @fragment |
| // fn frag_main() -> S {} |
| auto* m = Member(Source{{34, 56}}, "m", ty.atomic<i32>(), |
| ast::AttributeList{Location(Source{{12, 34}}, 0u)}); |
| auto* s = Structure("S", {m}); |
| |
| Func("frag_main", {}, ty.Of(s), {Return(Construct(ty.Of(s)))}, |
| {Stage(ast::PipelineStage::kFragment)}, {}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "34:56 error: cannot apply 'location' attribute to declaration of " |
| "type 'atomic<i32>'\n" |
| "12:34 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, BadMemberType_Unused) { |
| // struct S { @location(0) m: mat3x2<f32>; }; |
| |
| auto* m = Member(Source{{34, 56}}, "m", ty.mat3x2<f32>(), |
| ast::AttributeList{Location(Source{{12, 34}}, 0u)}); |
| Structure("S", {m}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "34:56 error: cannot apply 'location' attribute to declaration of " |
| "type 'mat3x2<f32>'\n" |
| "12:34 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, ReturnType_Struct_Valid) { |
| // struct Output { |
| // @location(0) a : f32; |
| // @builtin(frag_depth) b : f32; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto* output = |
| Structure("Output", {Member("a", ty.f32(), {Location(0)}), |
| Member("b", ty.f32(), {Builtin(ast::Builtin::kFragDepth)})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(LocationAttributeTests, ReturnType_Struct) { |
| // struct Output { |
| // a : f32; |
| // }; |
| // @vertex |
| // fn main() -> @location(0) Output { |
| // return Output(); |
| // } |
| auto* output = Structure("Output", {Member("a", ty.f32())}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kVertex)}, {Location(Source{{13, 43}}, 0)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: cannot apply 'location' attribute to declaration of " |
| "type 'Output'\n" |
| "13:43 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, ReturnType_Struct_NestedStruct) { |
| // struct Inner { |
| // @location(0) b : f32; |
| // }; |
| // struct Output { |
| // a : Inner; |
| // }; |
| // @fragment |
| // fn main() -> Output { return Output(); } |
| auto* inner = Structure("Inner", {Member(Source{{13, 43}}, "a", ty.f32(), {Location(0)})}); |
| auto* output = Structure("Output", {Member(Source{{14, 52}}, "a", ty.Of(inner))}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "14:52 error: nested structures cannot be used for entry point IO\n" |
| "12:34 note: while analysing entry point 'main'"); |
| } |
| |
| TEST_F(LocationAttributeTests, ReturnType_Struct_RuntimeArray) { |
| // struct Output { |
| // @location(0) a : array<f32>; |
| // }; |
| // @fragment |
| // fn main() -> Output { |
| // return Output(); |
| // } |
| auto* output = Structure("Output", {Member(Source{{13, 43}}, "a", ty.array<f32>(), |
| {Location(Source{{12, 34}}, 0)})}); |
| Func(Source{{12, 34}}, "main", {}, ty.Of(output), {Return(Construct(ty.Of(output)))}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "13:43 error: cannot apply 'location' attribute to declaration of " |
| "type 'array<f32>'\n" |
| "12:34 note: 'location' attribute must only be applied to " |
| "declarations of numeric scalar or numeric vector type"); |
| } |
| |
| TEST_F(LocationAttributeTests, ComputeShaderLocation_Input) { |
| Func("main", {}, ty.i32(), {Return(Expr(1_i))}, |
| {Stage(ast::PipelineStage::kCompute), |
| create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i))}, |
| ast::AttributeList{Location(Source{{12, 34}}, 1)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for compute shader output"); |
| } |
| |
| TEST_F(LocationAttributeTests, ComputeShaderLocation_Output) { |
| auto* input = Param("input", ty.i32(), ast::AttributeList{Location(Source{{12, 34}}, 0u)}); |
| Func("main", {input}, ty.void_(), {}, |
| {Stage(ast::PipelineStage::kCompute), |
| create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i))}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for compute shader inputs"); |
| } |
| |
| TEST_F(LocationAttributeTests, ComputeShaderLocationStructMember_Output) { |
| auto* m = Member("m", ty.i32(), ast::AttributeList{Location(Source{{12, 34}}, 0u)}); |
| auto* s = Structure("S", {m}); |
| Func(Source{{56, 78}}, "main", {}, ty.Of(s), |
| ast::StatementList{Return(Expr(Construct(ty.Of(s))))}, |
| {Stage(ast::PipelineStage::kCompute), |
| create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i))}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: attribute is not valid for compute shader output\n" |
| "56:78 note: while analysing entry point 'main'"); |
| } |
| |
| TEST_F(LocationAttributeTests, ComputeShaderLocationStructMember_Input) { |
| auto* m = Member("m", ty.i32(), ast::AttributeList{Location(Source{{12, 34}}, 0u)}); |
| auto* s = Structure("S", {m}); |
| auto* input = Param("input", ty.Of(s)); |
| Func(Source{{56, 78}}, "main", {input}, ty.void_(), {}, |
| {Stage(ast::PipelineStage::kCompute), |
| create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i))}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: attribute is not valid for compute shader inputs\n" |
| "56:78 note: while analysing entry point 'main'"); |
| } |
| |
| TEST_F(LocationAttributeTests, Duplicate_input) { |
| // @fragment |
| // fn main(@location(1) param_a : f32, |
| // @location(1) param_b : f32) {} |
| auto* param_a = Param("param_a", ty.f32(), {Location(1)}); |
| auto* param_b = Param("param_b", ty.f32(), {Location(Source{{12, 34}}, 1)}); |
| Func(Source{{12, 34}}, "main", {param_a, param_b}, ty.void_(), {}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "12:34 error: location(1) attribute appears multiple times"); |
| } |
| |
| TEST_F(LocationAttributeTests, Duplicate_struct) { |
| // struct InputA { |
| // @location(1) a : f32; |
| // }; |
| // struct InputB { |
| // @location(1) a : f32; |
| // }; |
| // @fragment |
| // fn main(param_a : InputA, param_b : InputB) {} |
| auto* input_a = Structure("InputA", {Member("a", ty.f32(), {Location(1)})}); |
| auto* input_b = Structure("InputB", {Member("a", ty.f32(), {Location(Source{{34, 56}}, 1)})}); |
| auto* param_a = Param("param_a", ty.Of(input_a)); |
| auto* param_b = Param("param_b", ty.Of(input_b)); |
| Func(Source{{12, 34}}, "main", {param_a, param_b}, ty.void_(), {}, |
| {Stage(ast::PipelineStage::kFragment)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "34:56 error: location(1) attribute appears multiple times\n" |
| "12:34 note: while analysing entry point 'main'"); |
| } |
| |
| } // namespace |
| } // namespace LocationAttributeTests |
| |
| } // namespace |
| } // namespace tint::resolver |
